• TWeaK@lemm.ee
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    1 year ago

    Fun fact, most people in the world are trichromats, they have 3 types of colour sensors in their eyes. One type of colourblindness that only affects men is where they only have 2 types of sensor and are dichromats - the gene is only found in the X chromosome, and it’s impossible for women with two X chromosomes to get the deficiency. However, it’s possible for women to get super genes and have 4 types of sensor, making them quadchromats. These ladies can see colours in between two other colours, that no one else can see. However, because the world is built by and for trichromats, this gift goes by largely unknown even by the people who have it.

    • TheRealKuni@lemmy.world
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      1 year ago

      It is possible for women to be colorblind (if their father is colorblind and their mother is a carrier for the gene).

      It is also possible for men to be tetrachromats if they have XXY genes (called Klinefelter syndrome).

    • Psythik@lemm.ee
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      1 year ago

      I once knew a girl who was colorblind. Both her parents were too. It’s rare but it can happen.

        • joel_feila@lemmy.world
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          1 year ago

          the gene for red green color blindness is carried on the X chromosome so a woman can have it it is just very rare. Now blue yellow color blindness is much much rarer and carried on a different chromosome so men and women have it equally

        • Psythik@lemm.ee
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          1 year ago

          I didn’t know her well enough to ask. She was a friend of a friend, and this was over a decade and a half ago.

    • Texas_Hangover@lemm.ee
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      1 year ago

      My daughter has the super eyes. She looooves pointing out different colors that “daddy can’t see!” Lol.